Apparatus for spraying and burning liquid fuel.



No. 709,579. Patented Sept. 23, I902.

7 A. KUHLEB. APPARATUS FOR SPRAYING AND BURNING LIQUID l- 'UEL.

(A umion' filed m 23, 1900.

2 Sheets-Shae; I.

(No Model.)

HI-IGTON. l) r:

Patented Sept. 23, 1902:. A. KDHLER.

APPARATUS FOR SPRAYING AND BU RNING LIQUID FUEL.

(No Maul.

(Application filed May 28, 1900.

2 Sheets-Sheet 2,

lhvirir drafts ATIENT tries.

AUGUST KoHLER, OF HAMBURG, GERMANY.

APPARATUS FOR SPRAYING AND BURNING LIQUID FUEL.

SPECIFICATION forming part of Letters Patent No. 709,579, dated.September 23, 1902.

Application filed May 23, 1900. Serial No. 17,634.. (No model.)

To ztZZ whont it may concern:

Be it known that I, AUGUST KGHLER, engineer, a subject of the Emperor ofGermany, residing at 17 Beethovenstrasse, Hamburg, Germany, haveinvented certain new and useful Improvements in Apparatus for SprayingandBurning Liquid Fuel; and I do hereby declare the following, to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to apparatus for spraying and burning liquidfuel, such as petroleum residue, whereby the liquid fuel is reduced tothe form of spray by means of a burner through the action of a currentof air under pressure. The burner effects a thorough mixing of theliquid fuel with the current of air, so that after the mixture leavesthe nozzle of the burner an exceedingly powerful combustion takes place,with extraordinary heating effect and a non-illuminating flame.

In the accompanying drawings, Figure 1 is a perspective viewillustrating the applica tion of my invention to a horizontal boiler.Fig. 2 is a side view illustrating the arrangement of the burners,burner-pipes, and distributing-box.

The steam-boiler A is furnished with an ordinary fire-tube B, which maybe partially or entirely closed in front. Into this fire-tube, which maybe lined with fire-brick or other suitable material, one or more burners1), b and 19 project. The burners consist of tubes inserted one withinthe other, the outer and inner of which are supplied with air underpressure, While the middle tube conveys the petroleum residue or otherliquid fuel. In addition a stream of carbureted air-for example,gasoline mixed with air or the likemay be fed to the opening of theburner for the purpose of facilitating the ignition of the mixture offuel and air.

The burners Z2 Z2 b are seated in double tubes, which can be turned atthe points 0, c and c and which tubes lead from a distributing-box O,which is pivotally mounted on threads of two supply-pipes d and c.

It Will be noted that as the distributing-box can be turned between thepipes d e and as the burner-pipes are pivotally jointed at the points 0c c the simultaneous turning of the box 0 and the burner-pipes causesthe burners b b b to be removed from the fire-box.

In the distributing-box O the tubes at and e branch off to the differentconcentric tubes forming the burners b b 19 The tube (1 suppliespetroleum residue or other liquid fuel and the tube 6 supplies air. Nearthe tirebox B each of the burners b 12 Wis furnished with an air-valveand a valve for the liquid fuel. The tubes d and 6 also have valves insuitable places.

D is the reservoir for the liquid fuel, which, like all such apparatus,may be placed at any suitable distance from the fireplace, as preferred.The reservoir D is furnished with a conduit cl, through which thepetroleum residue or other liquid fuel can be pumped out of the mainreservoir. The reservoir D is also fitted with a safety-valve and agageglass. A preliminary feed-heater arranged on the reservoir D is alsodesirable. By the preliminary heating of the liquid fuel the heatingpower of the latter can be considerably increased, especially as therebythe air of combustion is also preliminarily heated.

The air-reservoir E, which should be as large as possible, may have anair-tube (2 opening into the reservoir D, in order, in the case offorced heating, to force the liquid fuel with pressure into the tube CZ.The airreservoir E is fitted with a safety-valve and a manometer. Theair-pump F is arranged for working by hand or by steam from the boilerby means of the pipe a (t is the steam-outlet pipe.

Instead of the arrangement for working by hand a hot-air motor or thelike may be employed. The pump F forces air into the airreservoir Ethrough the pipe f, fitted with a non-return valve.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

1. In an apparatus for spraying and burning liquid fuel, the combinationwith air and fuel reservoirs, and pipes leading therefrom, of adistributing-box having a pivotal connection with said pipes, tubesleading from the distributing-box, and burners carried at the oppositeend of said tubes, each of said tubes being pivotally jointedintermediate its respective burner and the distributing-box, as and forthe purpose specified.

2. In an apparatus for spraying and burning liquid fuel, the combinationwith air and fuel reservoirs, and pipes leading therefrom, of adistributing-box arranged intermediate the outer ends of the said pipesand having a pivotal connection with said ends, tubes leading from thedistributing-box at points to one side of the point at which said box ispivoted, and burners carried at the other end of the tubes, each of saidtubes being pivotally jointed intermediate its respective burner and thedistributing-box, as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST KOHLER. Witnesses:

E. H. L. MUMMENHOFF, IDA HAFERMANN.

